Feature engineering and models for Facebook Search Typeahead

1. Developed and maintained Shard Manager, a caching load balancer for stateful servers.

2. Developed and maintained Geo Database and KV database middleware.

1. Managed operations for an outsourcing development company, overseeing a 5-person development team.Led end-to-end project execution including project initiation, program architecture, testing, and final delivery, completing 5 projects.

2. Developed a SLAM algorithm enabling trajectory prediction for trailers, decreasing the probability of trailer collision with obstacles to less than 1%.Improved localization accuracy by 15% in areas with subtle features.

3. Designed and developed an internal management system for a construction company, featuring functionalities such as project workflow management and online contract management.Contributed to over 50% increase in operational efficiency.

1. Created a graph-based deep learning framework for a 100MHz clock frequency CPU, maintaining CPU utilization below 20%.Implemented LSTM model using framework.

2. Utilized deep learning to detect and label teeth, resulting in an average time savings of 30 minutes per patient for dentists.Employed machine learning to classify implants within limited data samples, achieved a 23% increase in accuracy.

3. Communicated project requirements with clients, provided progress updates, and led a 2-person testing team. Managed two projects that contributed to generating over 50% of the company's revenue.

1. Crafted a soccer management game using Unity, creating a model management tool increased efficiency of art asset validation by over 40%.Utilized shaders to achieve effects, resulting in a 90% performance improvement in complex scenes.

2. Engineered a shared library for company apps, building an API enables multi-social account logins and game content sharing.Upgraded push notification system, migrating from previous GCM-based system to one based on FCM.

3. Supervised company's AWS, Google Play, and App Store accounts.Resolved email sending restrictions caused by invalid email addresses, conducting troubleshooting, communicating with AWS support, and restoring services within one day.